Hi all!

I wondered if any one of you could help me with some advice. I am currently undergoing a project on a '96 rx7 RS (JDM Import), decided to do a conversion into a single turbo. I have bought a new Greddy TD06-25G as I've read the mitsu turbos are quiet reliable and the spool time is relatively low considering that it is not a ball bearing turbo. Does any one of you on here use this turbo kit? And what sort of powerband or you in? I know this basically depends on boost and tuning, we have purchased an Apexi Power FC with Commander and dataloggit for this purpose. Other mods on the car are Greddy FMIC, full exhaust system/decatted and aluminium radiator. To run this turbo with 20psi, do we need a bigger fuel pump and injectors? What other mods do you guys recommend?

Any sort of advice would be greatly appreciated.

Regards,
Chris @ Zisco Performance

Attached a picture of the car below.

 

ignition box,aftermarket fpr, and a good tuner

 

what do you mean with ignition box mate?
so i don't really need to get a bigger fuel and injectors do I?

 

The 25G is a great turbo in my opinion. Spool will be very quick..due to the rotary exhaust pressures. Ive see the 25Gs on Evos and the spool isn;t bad, so it shouldn't be a problem on a rotary. Actually its the smaller brother to the popular T78 that many ppl use on their Rx7s without any major lag issues ( to most ppl). Alot of Japanese tuner cars use that kit on their track cars because of the response.

As for mods, I would suggest:
1)get larger secondary injectors (like 1600 cc) and accompanying fuel rail
2) a good aftermarket fuel pressure regulator like aeromotive or SX or Sard, etc;
3) A ignition amplifier like HKS twin power, Crane Hi6 or MSD 6AL
4) Gonna need a good clutch for the power..like a sprung 6 puck clutch
5) A good electronic boost controller, greddy profec B or E-01, Apexi AVCR, alot more out there.
6) A good fuel pump..depending on the route you choose...if you going intank a Denso Supra pump is good or you can external and go Bosch 044 inline. A good safe move is get a surge tank setup with the Bosch pump.
7) Some good #10 or #11 heat range plugs
8) A good tuner as jamespond said.

Thats my take..

 

thank you for the reply BluRR.

do Sard make 1600cc injectors for the FD? guess these will have to be high impedance too. Does the fuel rail have to be changed to fit these injectors? I didn't want to go into loads of more expenses, and the only larger injectors I could find are Sard (which are not as cheap). Does anyone know of anymore brand that do injectors for the FD? The Power FC should be able to work with these injectors I guess.

What is the size of a '96 13B-T fuel pump? So a supra 255lph will be an upgrade for the car? And will it be sufficient to run 20psi with this turbo? Might go through the external route too as BluRR suggests.

Sorry for all the questions I just need to know I doing things right.
Thanks!!

 

Here is a link to RHDjapan for some of the SARD stuff including the fuel rail.
https://www.rhdjapan.com/category/MA...-7/Fuel-System

Yes the supra pump would be an upgrade..however I suggest you keep the stock intank pump and get an external bosch 044 pump with a surge tank. I'm not sure about which type of injectors work with the Power FC..some1 who knows more about Power FC can help you with that.
Essestially all you need is some top feed injectors to work with the upgraded secondary rail (as the stock setup is a side feed). I;m not sure how large the sard injectors go..but based on that site they only go up to 1000cc. You can also buy the fuel kit form sard with both primary and secondary top feed rails and but 4 1000cc injectors..I think that should be sufficient for your power needs.

When you start modifying your FD..its hard to avoid expenses.

 

thanks for your reply again BluRR.

I checked the link you provided, RHD has got some good prices there. The only thing is, the Sard 1000cc injectors are low impedance, and will require a resistor pack to work on an rx7. Now I'm running a standalone, Apexi Power FC, will I still need a resistor pack to run low impedance injectors, and can it be setup on a Power FC? Are there any more companies that do injectors of 1000cc or above that will fit on the Sard fuel rail?

Also checked out the Bosch 044 pump, sounds an interesting device really. Do I have to buy a relay for that fuel pump or is everything provided with the kit? RHD offers a fuel pump relay, and it says it is meant to work with Sard fuel pumps, but doesnt mention if it is just for Intank pumps. Which swirl pot tank would you suggest? There are circular and rectangular ones, dunno which to go for, 2L or 5L?

Thanks in advance!

 

25G is a great turbine, one of the best all around in my opinion, second only to T04Z.

 

Hi bro,

drop me a line.....

pm sent.


G

 

thank you for your comment mate, I was hoping this will be a good upgrade and that the project moves on flawlessly.

 

can anyone enlighten me with some answers to my questions plzz i am trying to have my project ready for March

 

Bro,

I've been there and done that. I am local, if you need help i am more then willing to help you out.

just give me a call mate and i can hand you over tons of documentation and help...

its up to you mate...


Cheers

George

(Grey RX7)

Did you get my private message with phone number?

 

thanks for your input mate, will be in contact soon

anyone with more opinions? where can I get 1600cc injectors from?

 

kgparts.com

 

what do you plan on doing with the twin turbo? i'll take it off your hands if it's jsut going to sit somewhere collecting dust.

 

thats great thanks 'elnr', even for the PM

I won't be needed the twin turbo setup when I finish fitting this kit, as you said will probably end up collecting dust. I'll PM you pics/prices when im done with it so you could see it. Thanks

 

The 25g is essentially a t67 isn't it.?

 

Yup a Greddy T67

 

I had ever used the Greddy T78 33D, HKS T45S and T51S all of these are big and need some port modified for the best powerband. It's not for street purpose and daily use, your TD06 25G is not like the small rice cooker and no need for port mod. There are many things to do for support you 20 psi boost...

My street and daily used specs.
Engine:'97 13REW used from Japan
Port:stock
Turbo: Sard K27 3470MOJ
Manifold: Custom
Wastegate: Sard Type J
Blow Off: Greddy Type C
Boost: 1.0 Bar
Boost Controller:Apexi AVC-R
Intercooler:Garrett
Fuel Regualtor:Sard
Fuel Pump:R33GTR(intank), additional Bosch with Sub tank
Injector:550 cc X 2 secondary
RWHP:349 (since 2004 still use this spec until today)
EMS: Apexi Power FC Set up by TopFuel Racing Japan
Transmission:OS Giken Closed Ratio
Clutch:Cusco Twin Plates
LSD:Mazdaspeed
Rear Diff:4.3:1





Dyno test

 

nice setup u got there

 

anyone else with more options?

 

Options for what? Whats else do you want?

As for the injectors I am not sure, I run a microtech, but from I think i have seen around it appears you will need the resistors to run those injectors with a PFC..but dont take my word for it..I was hoping some1 with PFC experience which is alot ppl here would have jumped in and said something.

As for the swirl I just FEEL (can say for sure) that it would be better to go with a circular tank. I don think you need a 5L tank, I think a 2L or there abouts would be sufficient for your goals.

Here's next site that has great prices on the fuel pump and surge tanks in my opinion and you msg Rx72c with question, he is very helpful and responsive and he knows alot more about this stuff that I do. If you can find him Just go in the Microtech, he normally hangs around there.

http://www.raceonly.com.au/index.php...y=USD&cPath=23

 

thanks for your help mate, much appreciated.